public class Example12_1 { 
	public  static void main(String args[]) { //主线程
		SpeakElephant  speakElephant;
		SpeakCar  speakCar;  
		speakElephant = new SpeakElephant() ;      //创建线程
		speakCar = new SpeakCar();                //创建线程
		speakElephant.start();                          //启动线程 
		speakCar.start();                         //启动线程
		for(int i=1;i<=15;i++) {
			System.out.print("主人"+i+"  ");
		}  
	}
}
